Electrical Engineering Projects.

LulzBot TAZ 6 Research and Development

The LulzBot TAZ 6 was officially released May 17, 2016. There have been many improvements to the quality, reliability, and performance. The electrical system experienced a massive overhaul compared to the TAZ 5.

The requirements for the electrical system in the TAZ 6 were the following:

Endstops are normally-closed to reduce EMI and to account for open-circuit failure modes

The EMC improvements made could only be done at the machine/wiring level due to the electronics having been designed in proprietary software. Several TAZ 6 machines were tested and passed Class B, significantly increasing our sample size. On the TAZ 5 which lacks proper grounding, shielding, and filtering the PCB transmits quasi-peaks which are ~7dB above the Class B limit.